Changing File Time Stamp (Bash Script)


 
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Old 03-05-2010
Jim,

We have an exact requirement, but it is not like chj's where it is on two different mountpoints. The files are on one directory and one mount point. All we need to do is update the timestamp of the file so they don't automatically get purged due to aging by our retention policy.

I used the exact code for the same requirement...but it does not work. We have AIX box and use ksh shell. I believe it is due to that...

Instead I was trying to use it this way. It does change the timestamp, but I would like to pass the timestamp as a parameter like you suggested
Code:
(+%Y%m%d%H%M%S)

so when we run this on a monthly basis it will change the timestamp as of the run date.

Code:
#!/usr/bin/ksh
find . -type f |
while read fname
do
touch -t 201003050525.26 $SEQ_DIR/${fname}
done

In additon to that, how can we also make the code work so it only picks the files that we need? Should we pass a list file as a parameter which has the list of files that need to be touched with the new timestamp?

Please advise on the best way to approach this.

Regards,
MK
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UNSHAR(1)						      General Commands Manual							 UNSHAR(1)

NAME
unshar - unpack a shar file SYNOPSIS
unshar [ options ] [ file ... ] DESCRIPTION
Unshar scans mail messages looking for the start of a shell archive. It then passes the archive through a copy of the shell to unpack it. It will accept multiple files. If no files are given, standard input is used. OPTIONS
Options have a one letter version starting with - or a long version starting with --. The exception is --help and --version, which does not have a short version. --version Print the version number of the program on standard output, then immediately exits. --help Print a help summary on standard output, then immediately exits. -d DIRECTORY --directory=DIRECTORY Change directory to DIRECTORY before unpacking any files. -c --overwrite Passed as an option to the shar file. Many shell archive scripts (including those produced by `shar' 3.40 and newer) accepts a -c argument to indicate that existing files should be overwritten. -e --exit-0 This option exists mainly for people who collect many shell archives into a single mail folder. With this option, `unshar' isolates each different shell archive from the others which have been put in the same file, unpacking each in turn, from the beginning of the file towards its end. Its proper operation relies on the fact that many shar files are terminated by a `exit 0' at the beginning of a line. Option -e is internally equivalent to -E "exit 0". -E STRING --split-at=STRING This option works like -e, but it allows you to specify the string that separates archives if `exit 0' isn't appropriate. For example, noticing that most `.signatures' have a `--' on a line right before them, one can sometimes use `--split-at=--' for splitting shell archives which lack the `exit 0' line at end. The signature will then be skipped altogether with the headers of the following message. -f --force The same as -c. SEE ALSO
shar(1) DIAGNOSTICS
Any message from the shell may be displayed. AUTHORS
The shar and unshar programs is the collective work of many authors. Many people contributed by reporting problems, suggesting various improvements or submitting actual code. A list of these people is in the THANKS file in the sharutils distribution. September 10, 1995 UNSHAR(1)